Product Manual B

3 Wiring

WARNING

AC voltages and currents present an electrical shock hazard that can cause severe personal

injury or death. Only trained and experienced personnel are to perform the following procedures.

When installing conduit, observe the following precautions:

1. Before beginning conduit installation, cover the transfer switch to prevent accidental entry of

metal chips.

2. If using rigid conduit between the generator set and the transfer switch, install at least 2 feet (610

mm) of flexible conduit between the rigid conduit and generator set to absorb vibration.

3. Run control circuit wiring in separate conduit from the AC wiring; otherwise, induced currents could

cause operational problems within the switch.

NOTICE

Regarding step 4 below, this is a recommendation only and does not overrule local codes

and standards.

4. In the case of underground cabling, where there are chances of moisture entering the ATS cabinet,

follow the below procedure for sealing the conduit entrances into the ATS cabinet:

a. After cable installation is complete, use Duct Seal to seal the entrance of the conduit into the

ATS cabinet.

b. Push the Duct Seal compound around the cables, and make sure there are no gaps.

CAUTION

Installation debris can cause equipment failure and damage. Use extreme care to keep drill chips

and filings out of the relays, contacts, and other parts of the automatic transfer switch when

mounting or connecting conduit. Screwdrivers should be used carefully to prevent damage to

components.